/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.engine.impl.bpmn.helper;

import com.je.bpm.engine.ActivitiIllegalArgumentException;
import com.je.bpm.engine.delegate.event.ActivitiEvent;
import com.je.bpm.engine.impl.context.Context;
import com.je.bpm.engine.impl.interceptor.CommandContext;
import com.je.bpm.engine.impl.persistence.entity.EventSubscriptionEntityManager;
import com.je.bpm.engine.impl.persistence.entity.SignalEventSubscriptionEntity;
import com.je.bpm.engine.repository.ProcessDefinition;

import java.util.List;

/**
 * An {@link com.je.bpm.engine.delegate.event.ActivitiEventListener} that throws a signal event when an event is dispatched to it.
 */
public class SignalThrowingEventListener extends BaseDelegateEventListener {

    protected String signalName;
    protected boolean processInstanceScope = true;

    @Override
    public void onEvent(ActivitiEvent event) {
        if (isValidEvent(event)) {
            if (event.getProcessInstanceId() == null && processInstanceScope) {
                throw new ActivitiIllegalArgumentException("Cannot throw process-instance scoped signal, since the dispatched event is not part of an ongoing process instance");
            }
            CommandContext commandContext = Context.getCommandContext();
            EventSubscriptionEntityManager eventSubscriptionEntityManager = commandContext.getEventSubscriptionEntityManager();
            List<SignalEventSubscriptionEntity> subscriptionEntities = null;
            if (processInstanceScope) {
                subscriptionEntities = eventSubscriptionEntityManager.findSignalEventSubscriptionsByProcessInstanceAndEventName(event.getProcessInstanceId(), signalName);
            } else {
                String tenantId = null;
                if (event.getProcessDefinitionId() != null) {
                    ProcessDefinition processDefinition = commandContext.getProcessEngineConfiguration().getDeploymentManager().findDeployedProcessDefinitionById(event.getProcessDefinitionId());
                    tenantId = processDefinition.getTenantId();
                }
                subscriptionEntities = eventSubscriptionEntityManager.findSignalEventSubscriptionsByEventName(signalName, tenantId);
            }
            for (SignalEventSubscriptionEntity signalEventSubscriptionEntity : subscriptionEntities) {
                eventSubscriptionEntityManager.eventReceived(signalEventSubscriptionEntity, null, false);
            }
        }
    }

    public void setSignalName(String signalName) {
        this.signalName = signalName;
    }

    public void setProcessInstanceScope(boolean processInstanceScope) {
        this.processInstanceScope = processInstanceScope;
    }

    @Override
    public boolean isFailOnException() {
        return true;
    }
}
